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Accrued Expenses and Other Current Liabilities
9 Months Ended
Sep. 30, 2023
Accrued Expenses and Other Current Liabilities [Abstract]  
Accrued Expenses and Other Current Liabilities Accrued Expenses and Other Current LiabilitiesAccrued expenses and other current liabilities consisted of the following at September 30, 2023 and December 31, 2022 (in thousands):
September 30,
2023
December 31,
2022
Employee compensation and benefits$5,134$5,063
External research and development expenses2,7671,157
General and administrative professional service expenses754925
Other944431
Total accrued expenses and other current liabilities$9,599$7,576